Waec 2017 Computer Obj And Theory Answers

Waec 2017 Computer Obj And Theory Answers – May/June Expo

ATTENTION:- PLEASE AFTER SENDING YOUR CARD DO NOT THROW THEM AWAY UNTIL YOU RECEIVE A CONFIRMATION MESSAGE FROM US.

WAEC (Computer) ANSWER

*WAEC COMPUTER STUDIES 2017/2018*

VERIFIED COMPUTER OBJ

1A 2C 3D 4C 5D 6A 7D 8C 9A 10D 11D 12D 13D 14D 15A 16B 17A 18C 19D 20B 21B 22A 23B 24B 25A 26D 27C 28B 29C 30A 31A 32B 33A 34B 35C 36C 37D 38A 39C 40C 41B 42D 43D 44D 45B 46. 47C 48D 49D 50B

1a) Input device are devices by which data, information and instructions into the computer system
1b) keyboard
ii) light pen
1c) i) Logic gates are digital components that
typically work two levels of voltage and
determine how a component conducts
electricity.
ii) Logic gates use Boolean
equations and switch tables.

3a)
information is an analyzed or processed data, which is now
more meaningful and decisions can be made based on its
data and information is connected.
Communication technology is the activity of designing,
constructing and maintaining communication systems. In
the modern era it is referred to as ICT. This is information
and communications technology, and includes any
communication device or application such as radio and
television.

(3b)
LAN-local area network
GPS-global postioning Service.
IP-internet protocol

 (3b)
LAN-local area network
GPS-global postioning Service.
IP-internet protocol

==========================

(4b)ii.
Password-protect
documents encryption
Secure wireless transmissions

(4a)TABULATE
RAM: is the memory available for the operating system, programs and processes to use when the computer is running.
ROM: is the memory that comes with your computer that is pre-written to hold the instructions for booting-up the computer.
RAM:requires a flow of electricity to retain data (e.g. the computer powered on).
ROM:will retain data without the flow of electricity (e.g. when computer is powered off)

5a)

10110112

=1*2^6 0*2^5 1*2^4 1*2^3 0*2^2 1*2^1 1*2^0

=1*64 0*32 1*16 1*8 0*4 1*2 1*1

=64 0 16 8 0 2 1

=91

tabulate

16|91

5 r B

O r 5

10110112=5B16

were B is  11

5b)

HACKER

i) A hack group getting main owner on an XAT chat without authorization.

SCAMMER

ii)Tricking an internet user into giving you his/her login name and password

5c)

i)HTML:Hypertext Markup Language

ii)HTTP: Hypertext Transfer Protocol

iii)ISP: Internet Service Language

iv)SMTP: Simple Mail Transfer Protocol.

We appreciate you for reading Teeloadeders, but we think it will be better you like our facebook fanpage and also follow us on twitter below.
Follow @Teeloadedblog

Are you an artiste? Do you want your music to go viral and reach a large number of audience? Promote your music on TEELOADED by clicking here. You can also advertise your product or brand by clicking here.